#-*- coding:utf-8 -*-
from  itertools import combinations,permutations

list_number=['1','2','3','4']
#排列方式
list_number1=list(permutations(list_number,3))
print list_number1
print len(list_number1)
for p_list in list_number1:
	a="".join(p_list)
	print a
